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Topic: still needing help with equilibrium and solubility product  (Read 4960 times)

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Offline physicsperson

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still needing help with equilibrium and solubility product
« on: February 13, 2008, 11:28:41 PM »
I need some help with this question, if there are any chemistry whizzes around id really appreciate it:

Calculate the solubility of AgCl (in grams of AgCl/ L of solution) in an HCl solution having pH of 2.30. Ksp of silver chloride = 1.7 x 10^-10.
« Last Edit: February 13, 2008, 11:53:20 PM by physicsperson »

Offline physicsperson

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Re: equilibrium and solubility product
« Reply #1 on: February 13, 2008, 11:52:14 PM »
so far all i can tell is that from the ph u get the concentration of HCL, then...im lost

Offline Yggdrasil

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Re: equilibrium and solubility product
« Reply #2 on: February 13, 2008, 11:54:43 PM »
A good starting point is to

1) write out a chemical reaction describing the change that you're studying
2) write the definition of Ksp is defined in terms of concentrations

[edit: fixed typo]
« Last Edit: February 14, 2008, 01:11:34 AM by Yggdrasil »

Offline physicsperson

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Re: still needing help with equilibrium and solubility product
« Reply #3 on: February 14, 2008, 12:29:10 AM »
ok im workin on it, thanks. if anyone else has tips please help thank you

Offline AWK

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Re: still needing help with equilibrium and solubility product
« Reply #4 on: February 14, 2008, 01:01:47 AM »
Treat concentration of HCl as concnetration of chloride anion, and use it in Ksp. You will obtain concnetration of Ag+, which is a good approximation od solubilityof AgCl (note this solublility is in molar concnetration units).
AWK

Offline physicsperson

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Re: still needing help with equilibrium and solubility product
« Reply #5 on: February 14, 2008, 09:28:55 AM »
yes that it is true and i have acquired an answer by doing so, thanks so much.

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